參數(shù)資料
型號(hào): AD7797BRUZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 7/24頁(yè)
文件大?。?/td> 0K
描述: IC ADC 24BIT SIG-DEL 1CH 16TSSOP
標(biāo)準(zhǔn)包裝: 96
位數(shù): 24
采樣率(每秒): 123
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 1.6mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 管件
輸入數(shù)目和類型: 1 個(gè)差分,單極;1 個(gè)差分,雙極
產(chǎn)品目錄頁(yè)面: 779 (CN2011-ZH PDF)
配用: EVAL-AD7797EBZ-ND - BOARD EVALUATION FOR AD7797
AD7796/AD7797
Rev. A | Page 15 of 24
OFFSET REGISTER
RS2, RS1, RS0 = 1, 1, 0; Power-On/Reset = 0x8000 (AD7796)/0x800000 (AD7797)
The analog input channel has an offset register that holds the offset calibration coefficient for the channel. This register is 16 bits wide on
the AD7796 and 24 bits wide on the AD7797, and its power-on/reset value is 0x8000(00). The offset register is used in conjunction with
the full-scale register to form a register pair. The power-on/reset value is automatically overwritten if an internal or system zero-scale
calibration is initiated by the user. The offset register is a read/write register. However, the AD7796/AD7797 must be in idle mode or
power-down mode when writing to this register.
FULL-SCALE REGISTER
RS2, RS1, RS0 = 1, 1, 1; Power-On/Reset = 0x5XXX (AD7796)/0x5XXX00 (AD7797)
The full-scale register is a 16-bit register on the AD7796 and a 24-bit register on the AD7797. The full-scale register holds the full-scale
calibration coefficient for the ADC. The full-scale register is a read/write register. However, when writing to the full-scale register, the
ADC must be placed in power-down mode or idle mode. The full-scale register is configured on power-on with the factory-calibrated
full-scale calibration coefficient. Therefore, every device has a different default coefficient. The default value is automatically overwritten
if a system full-scale calibration is initiated by the user, or if the full-scale register is written to.
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